Advertisements
Advertisements
प्रश्न
Name one property of waves that do not change when the wave passes from one medium to another.
उत्तर
The frequency of the waves does not change when the waves travel from one medium to another.
संबंधित प्रश्न
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
The ratio of the amplitude of two waves is 3:4. What is the ratio of their Frequencies?
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Name three characteristics of a musical sound.
State three factors on which loundess of sound heard by a listener depends.
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
